Coupling-yoke.



W. BLACKMORE.

COUPLING YOKE.

APPLICATION vFILED ocT. 2a. |914.

Patented Sept. 1l, 19W.

3 SHEETS-SHEET l.

W. -BLACKMORE COUPLING YOKE.

Mfrlunlon mso ocr. 28, 1914.

Patented. Saw. 115191?.

3 SHEETS-SHEET Z- Lwyml@ W. BLACKMORE.

COUPLING YOKE.

APPLICATION FILED OCT. 28.1914.

l Patented Sept. 11, 1917.

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WILLIAM BLACKIVIORE, OF CLEVELAND, OI-IIO, ASSIGNOR TO THE NATIONALMALLE- ABLE CASTINGS COMPANY, OF CLEVELAND, OHIO, A CORPORATION OFOHIO.

COUPLING-YOKE.

Specication of Letters Patent.

Patented Sept. 11, 1917.

Application led. October 28, 1914. Serial No. 869,006.

To all 'whom t may concern.' y

Y Be it known that I, WHLIAM BLAGKMORE, a citizen of the United States,residing at Cleveland, Cuyahoga county, Chio, have invented new anduseful Improvements in Coupling-Yokes, of which the following is aspecification, reference being had to the accompanying drawings, inwhich- Figure 1 is a bottom plan showing the application of my improvedyoke to the underframing of a car; Fig. 2 is a side elevation, partly insection, thereof; Fig. 3 is a rear end view, and Fig. 4 is a frontelevation thereof; Fig. 5 is a rear end view showing a modified form ofthe connection between the rear ends of the top and bottom members, andFig. 6 is a partial side elevation thereof; Fig. 7 is a side elevation,partly in section, of another modification of my improved yoke, and Fig.8 is a rear end view thereof; Fig. 9 is a plan of a furthermodiyfication of my improved yoke; Fig. 10 is a side elevation thereof,partly in section; Fig. 11 is a rear end view of the modification shownin Fig. 10; Fig. 12 is a front elevation thereof; Fig. 13 is anelevation, partly in section, of a further modification of my invention,and Fig. 111 is a bottom plan thereof. My invention relates to coupleryokes of the type intended to permit the convenient disengagement of thecoupler, draft gear and yoke, and consists in providing a yoke in whichthe upper and lower arms of the yoke are suitably secured together attheir rear ends, and also in providing" their forward ends withmechanism to hold such ends in engagement with a coupler butt and toprevent spreading thereof under pulling stresses.' Mv invention alsoconsists in the construction and cooperation of the parts which I shallhereinafter describe and claim. Referring to the drawings, A indicatesthe upper member or upper arm of the yoke, and B the lower member orlower arm, C a shackleor loop securing together the forward ends of thearms A and B, and D the coupler butt. The arm A is provided at itsforward end with a pulling lip 2, intended to engage the upper forwardface 3 of the coupler butt D, and at its rear end by a verticallydisposed rear portion l, and a rib ron the exterior of the arm A and itsrear portion fl. At the lower end of the portion 11 the rib 5 isbifurcated to form a socket 6 open to the front, the rear and on itsunder side. The bottom and forward side of the socket (i have, however,two laterally and inwardly extending curved flanges 7 which providebearings for reception of the trunnions 8 on the thickened or reinforcedportion 9, in which the rear end of the arm B terminates. The forwardend of the arm B has an upwardly extending pulling lip 10,

intended to engage a forward lower face 11 of the coupler butt D, andhas also a key receiving rib 12. The shackle C which incloses theforward ends of the yoke arms A and B is preferably of rectangularshape, and has on its upper side a lip or projection 13, which engages ashoulder 14 on the upper face of the upper arm A, and on its lower sideit has downwardly extending apertured lugs 15, the apertures of whichare intended to register with the aperture in the rib 12 of the arm Bfor reception of a key or bolt 16. The shackle C has its side walls 17offset or flared outwardly to permi]t-lateral angling between thecoupler and yo ie.

In assembling the yoke the upper arm A is held in position between thedraft sills and the coupler butt D, over which the shackle C haspreviously been slipped, is in- Serted with its upper forward face 3 incontact with the lip 2 of the arm A. The followers 18 and shockabsorbing mechanism may then be placed in position between the rearportion 1 of the arm A and the rear face of the coupler butt D. Thetrunnions 8 on the rear end of the arm B are then inserted from the rearinto the socket 6 and are seated in the flanges 7, and the arm B maythen be rotated upwardly until its pulling lip 10 engages the forwardlower face 11 of the coupler butt I). The shackle C may then be slidrearwardly from the coupler shank, tilting its upper end to the rear (asis shown in the dotted line position in Fig. 2) so that the lip 13 willpass over the shoulder' 14, when its lower end can be swung downwardlyto engage the lower side of the arm B and to bring the apertures in thelu-gs'il into registry with the aperture4 in the' rib 12, so that thekey 16 may be inserted thus locking the parts firmly together. The upperforward face of the arm A and thev lowerv forward face of the arm B arepreferably beveled so as to insure a snug fit between these faces andthe corresponding faces of the shackle C, thereby preventing sln'eadingof the arms A and Blinder pulling stresses.

In Figs. 5 and 6 I have shown a modificationl of my invention in whichthe rear portion 4 of the arm A has been shortened and providedl with acentral longitudinally extending recess A19. Thelower arm B has. anupwardly extending portion 20 terminating iny a hook or finger 21, whichengages the" lower wall 22 o f the recess 19. In this construction thepulling stresses are taken up by the vertically extending faces of thepprtions 4 and 20 of the parts A" andB respectively.

In Figs. 7 and 8, I have shown another modification of my inventionl inwhich the rear follower 23 is made integral with the upper arm A2.Extending rearwardly from the follower 23l are flanges 24 connected attheir'rear ends by the transversely extending'bearing member 25. Thelower arm B? has an 4upwardly,extending portion 26 which bears againstthe rear face of the lower end of thefollower 23 and terminates in ahook shapedportion 2T intended to engage the bearing member 25. Afterthe upper arm Azhlas been` placed in position with the coupler, frontfollower and shock absorbing ...'iechanism therein, the hook 27 ofthearm t2 is slipped between the flanges 24 and about the member 25. Thearm B2 is then rotatedabout the member 25 and secured at its `forwardend as described above.

In Figs. 9, 10, 11 and 12 I have shown a fr lrther modification, of myinvention in whichl the rear follower Z8-has rearwardly extendingflangesV 29 and transversely extending ,bearing members V30 integraliwith suehy flanges 29and spaced apart from the rear face ofthe follower28. Each arm A and B? has a vertically extending portion 3L attitsrearend; terminating in a hook 32, which engages the. corresponding bearingmember 30 onthere'ar follower 28. i

`Atthe forward end of cach arm is an aperturedpboss 3 3, on each side ofwhich rearwardly extending` apertured projections 34 onY both; top andbottom of the shackle C8 are intended to seat. The lshackle C3 issecured tothe yoke arms by passing a key 35 through the correspondingapertures in the bosses 33 and projections 34 on the top and bottom ofthe yoke arms Af and B3.

In'Figs. 13 and 14 I have shown a further modification of my invention,in which the yoke arms A4 and B4 are inwardly offset at their forwardends and the usual reinforcing rib is omitted, so that the yokemay beapplied to oars in which there is a very limited vertical space for theyoke in the car underframing. The` strap C4 is held in place thereon bythe usual key connection on the under side of the lower yoke arm and bythe rearward extension of the lugs 154 which bear against the under sideof the-lower; yoke .arm B4 and prevent the upper part of the strap Cffrom tilting or slipping ofi' the upper arm A4.

It is obvious that various modifications may be made in theconstructions which` I have shown and described herein without departingfrom. my invention. l

WhatIrclaim is: 'N

1. In a-coupler yoke an upper and a lower i arm, the said arms having adetachableconnectionL at their rear ends and a securing member for theforward ends of the yoke arms, said securing member having a fulcrumbearing. on onearm andbeing. adapted to be rotated thereabout 4intoengagement with thel other yoke arm.

2, In a coupler yoke an upper and, a lower arm, thesaid'arms having aldetachable connection at their rear ends', said-arms'l being enlarged attheir forward ends,and a` securing member having an opening therein ofless extent than Vthe vertical distanceV between: the outer faces of.the enlargements on said arms, said securing member being adapted whenthe. coupler is in position to be passed over one of ksaid enlargementsand then to be rotated about said enlargement into engagement with theenlargement on the other arm.

3. In a coupler yoke an upper and a lower arm, the said arms havingadetachable connection at theirrear ends, said arms, at their forward,ends. having their outer faces inclined, ashackle having, inclined facescooperating with-4 the inclined faces on the upper and ylower armsl ofthe yoke and adaptedlto draw and hold the upper and lower. arms of, theyoke tightly `together whenlthe shackle has been moved, into operativeposition.` i

4. In aV coupler yoke, an upper and a lower arm, the said armshavingamember securing their forward ends together, one of fsaid arms havingat its rearend integral trunnions adapted to seat in a socketin theother yoke arm, said trunnions and socket comprising a, pulling,engagement between the yokearms substantially in linewith the lower arm.

5. In a coupler yoke, upper and lower trunnions adapted to seat in asocket in the arms intended to engage on their inner other yoke arm, soas to provide a pulling l) faces the upper and lower faces of a couplerengagement between the yoke arms. liner block, and a wedge memberengaging 5 outer faces of the yoke arms and adapted WILLIAM BLACKMORE'to hold the inner faces o the yoke arms in Witnesses: position about thecoupler liner block, one of HARRY E. ORB, the said arms having` at itsrear end integral HUBERT L. SPENGE.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D.

